copy_matrix_sp Subroutine

private subroutine copy_matrix_sp(dest, source, threaded)

copy a matrix of datatype sp

Arguments

Type IntentOptional Attributes Name
real(kind=sp), intent(inout) :: dest(:,:)
real(kind=sp), intent(in) :: source(:,:)
logical, intent(in), optional :: threaded

Calls

proc~~copy_matrix_sp~~CallsGraph proc~copy_matrix_sp copy_matrix_sp interface~pic_optional pic_optional proc~copy_matrix_sp->interface~pic_optional proc~optional_char optional_char interface~pic_optional->proc~optional_char proc~optional_dp optional_dp interface~pic_optional->proc~optional_dp proc~optional_int32 optional_int32 interface~pic_optional->proc~optional_int32 proc~optional_int64 optional_int64 interface~pic_optional->proc~optional_int64 proc~optional_logical optional_logical interface~pic_optional->proc~optional_logical proc~optional_sp optional_sp interface~pic_optional->proc~optional_sp

Called by

proc~~copy_matrix_sp~~CalledByGraph proc~copy_matrix_sp copy_matrix_sp interface~pic_copy pic_copy interface~pic_copy->proc~copy_matrix_sp

Variables

Type Visibility Attributes Name Initial
integer(kind=default_int), private :: cols
integer(kind=default_int), private :: i
integer(kind=default_int), private :: ii
integer(kind=default_int), private :: j
integer(kind=default_int), private :: jj
integer(kind=default_int), private :: rows
logical, private :: use_threads

Source Code

   subroutine copy_matrix_sp(dest, source, threaded)
        !! copy a matrix of datatype sp
      real(sp), intent(inout) :: dest(:, :)
      real(sp), intent(in)    :: source(:, :)
      logical, intent(in), optional :: threaded
      logical :: use_threads
      integer(default_int) :: i, j, rows, cols
      integer(default_int) :: ii, jj
      if (size(dest, 1) /= size(source, 1) .or. size(dest, 2) /= size(source, 2)) then
         error stop "Matrix size mismatch"
      end if
      rows = size(source, 1)
      cols = size(source, 2)
      use_threads = pic_optional(threaded, use_threaded_default)
      if (use_threads) then
         !$omp parallel do collapse(2) private(i,j,ii,jj)
         do jj = 1, cols, block_size
            do ii = 1, rows, block_size
               do j = jj, min(jj + block_size - 1, cols)
                  do i = ii, min(ii + block_size - 1, rows)
                     dest(i, j) = source(i, j)
                  end do
               end do
            end do
         end do
         !$omp end parallel do
      else
         dest = source
      end if
   end subroutine copy_matrix_sp